Bacula-users

[Bacula-users] Add external drive rotation to existing backup regime?

2017-05-09 18:40:34
Subject: [Bacula-users] Add external drive rotation to existing backup regime?
From: "David Andrzejewski" <david AT davidandrzejewski DOT com>
To: bacula-users AT lists.sourceforge DOT net
Date: Tue, 09 May 2017 22:21:59 +0000
I'm *relatively* new to bacula. I have a working bacula setup where I have a bunch of machines backing up to a ZFS array on a server. This is working well and without error, I've tested restores; everything seems hunky-dory. Basically, I do a full backup of each client every couple of weeks, daily incrementals in between, and I don't prune backups until they're 60 days old.

The next step is to add a rotation of external USB hard drives to this setup, so that I can store backups offsite as well. My thought is that I can start with two drives, one on-site and one off-site, and periodically switch them out. Maybe add more drives to the rotation later on.

I've looked at vchanger, and I *think* that's what I need here. The problem is, I'm not entirely clear on how it will work with my current setup. I want to be sure that I can do complete restores even if the server and on-site external drive is totally destroyed. My worry is that if I misconfigure it, I will end up with some of my full backups on one of the drives but not both, incrementals on the other, etc.

I want to be sure I configure this to have the full backups and incremental backups on the ZFS pool as it is now, as well as on ALL external hard drives, so only one of the drives is needed to do a full restore of everything, at least up until the point where it was unmounted from the system.

How can I be sure of all of this?

Thanks!

- Dave
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